1.5k citations · 3.4k across the 59 of their papers we have counts for
6 papers · 1 filter
Theory for Superconductivity in Iron Pnictides at Large Coulomb U Limit
Wei-Qiang Chen, Kai-Yu Yang, Yi Zhou +1
Superconductivity in iron pnictides is studied by using a two-orbital Hubbard model in the large U limit. The Coulomb repulsion induces an orbital-dependent pairing between charge…
Hardcore bosons on checkerboard lattices near half filling: geometric frustration, vanishing charge order and fractional phase
Yi Zhou
We study a spinless hardcore boson model on checkerboard lattices by Green function Monte Carlo method. At half filling, the ground state energy is obtained up to lat…
Na4Ir3O8 as a 3D spin liquid with fermionic spinons
Yi Zhou, Patrick A. Lee, Tai-Kai Ng +1
Spin liquid states for spin-1/2 antiferromagnetic Heisenberg model on a hyperkagome lattice are studied. We classify and study flux states according to symmetries. Applying this mo…
Symmetry of superconducting states with two orbitals on a tetragonal lattice: application to
Yi Zhou, Weiqiang Chen, Fu-chun Zhang
We use group theory to classify the superconducting states of systems with two orbitals on a tetragonal lattice. The orbital part of the superconducting gap function can be either…
Even Parity, Orbital Singlet and Spin Triplet Pairing for Superconducting
Xi Dai, Zhong Fang, Yi Zhou +1
In the present paper, we propose the parity even,orbital singlet and spin triplet pairing state as the ground state of the newly discovered super-conductor .The p…
Fermi-edge problem in the presence of AC electric field
Yi Zhou, Tai-Kai Ng
We study in this paper a non-equilibrium Fermi-edge problem where the system under investigation is a single electron reservoir putting under an AC electric field. We show that the…